Additional Notes
What could go wrong if equals() is not correctly overridden?
Track: Java
Topic: Collections
Focus: Set Interface and HashSet
Java: Set Interface and HashSet
Answer
Incorrect equals() can lead to unexpected duplicates in HashSet.
Without correctly overriding equals(), HashSet may fail to identify duplicates. For example, two Product objects with the same ID could be considered different if equals() doesn't use the ID for comparison, allowing duplicates.
Without correctly overriding equals(), HashSet may fail to identify duplicates. For example, two Product objects with the same ID could be considered different if equals() doesn't use the ID for comparison, allowing duplicates.
Topics: Collections Java Set Interface and HashSet